Q: What are the prime factors of the number 11,230,744?

 A: 2, 7, 17, 47, 251

Why are those the prime factors of the number 11,230,744?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 11,230,744

11,230,744
Factor Arrows
25,615,372
Factor Arrows
22,807,686
Factor Arrows
21,403,843
Factor Arrows
7200,549
Factor Arrows
1711,797
Factor Arrows
47251

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 17, 47, 251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 17 x 47 x 251 = 11,230,744

This can also be written as 23 x 71 x 171 x 471 x 2511 = 11,230,744

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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